Note: I'll be away on a trip for a few days. Amateur Nikon should be back in action in about ten days.
Today's article is inspired by a comment I saw on a photography forum. There, someone advised another photographer to avoid third-party lenses because they supposedly are very bad when it comes to chromatic aberration. Of course - as I mentioned there as well - this is utter nonsense. You can't make such a comment any more than you can claim "Nikkor lenses are very good when it comes to vignetting". What you can say is something like "Lens A is better than lens B when it comes to element C".
|Taken with a Sigma Super Wide AF 24mm f/2.8. I find it better than the Nikkor of the same generation.|
To me (and to many other photographers out there) it seems self-evident that a third-party lens isn't always either worse or better; it depends on the design. But I realized this isn't necessarily known by a quite significant number of not-so-experienced photographers. The options are endless, but this also increases confusion. So, let's get to the bottom of this.